Dog overweight? Destructive or misbehaved? Have a hunting dog or hiking buddy that gets out of shape in the off-season?
At $15 for 30 minutes (plenty for most dogs), $20 for an hour, it's under half industry standard just for a walk!* Picked up and dropped off at your house.
Caesar Millan: "Discipline, Exercise, Affection; In that order" for a happy dog.
*$5-10 additional charge for leash training for unwieldy dogs, for the first 5 runs (then they will be fairly trained by then and the charge will be dropped)